Bicycle Registration


Bike theft is an increasing problem in our community. In order to deter theft and to help law enforcement match recovered bicycles to their owners, the Mill Valley Police Department offers a bicycle registration service for its community members. The best way to track a stolen bike or to identify the owner of a found bike, is through the bicycle’s serial number. However, most people do not have this information stored anywhere. Having your bicycle information on file will help us if your bicycle is ever stolen or lost. By participating in the Bicycle Registration Program, you will assist law enforcement in matching recovered bikes to their rightful owners.

The program is open to all Mill Valley residents. We encourage community members to register their bicycles as soon as possible, but registrations can be made at any time. You can register all bicycles that you own, including children’s bikes. If you purchase a new bicycle or get rid of an old bicycle, please notify our department of the change so that we can update our records.

If you would like to participate in the program, download the bicycle registration form. Send your completed forms, along with a photo of your bike, to

Click here to fill out the form online.

The bike's serial number is normally located underneath the bike, where the pedals meet the frame, as shown above.

Bike Tips:

Know your bike’s serial number and write it down.
Lock your bicycle when you are not around (even if it is on a car’s bicycle rack).
Never leave your bike unattended for an extended period of time.
Lock your bike to a fixed object in a visible area.
Use bicycle U-locks, which are harder to cut than wire locks.
Lock your bike frame and one wheel to the bike rack.
Always report the theft to the police as soon as possible.